1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.amazonrankings;
24  
25  import com.liferay.portlet.amazonrankings.model.AmazonRankings;
26  import com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil;
27  
28  import java.util.ArrayList;
29  import java.util.List;
30  
31  import javax.portlet.PortletPreferences;
32  import javax.portlet.PreferencesValidator;
33  import javax.portlet.ValidatorException;
34  
35  /**
36   * <a href="AmazonRankingsPreferencesValidator.java.html"><b><i>View Source</i>
37   * </b></a>
38   *
39   * @author Brian Wing Shun Chan
40   */
41  public class AmazonRankingsPreferencesValidator
42      implements PreferencesValidator {
43  
44      public void validate(PortletPreferences prefs) throws ValidatorException {
45          List<String> badIsbns = new ArrayList<String>();
46  
47          String[] isbns = prefs.getValues("isbns", new String[0]);
48  
49          for (int i = 0; i < isbns.length; i++) {
50              AmazonRankings amazonRankings =
51                  AmazonRankingsUtil.getAmazonRankings(isbns[i]);
52  
53              if (amazonRankings == null) {
54                  badIsbns.add(isbns[i]);
55              }
56          }
57  
58          if (badIsbns.size() > 0) {
59              throw new ValidatorException(
60                  "Failed to retrieve ISBNs", badIsbns);
61          }
62      }
63  
64  }